English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Recently, discrete element method (DEM) had been applied for simulation of the blast furnace. For mitigating computation load and precise simulation of blast furnace, the determination of optimum physical parameters in DEM are very important. In the present study, influence of variation of hardness, rolling friction coefficient of particle and descending velocity on the solid flow and stress distribution in the blast furnace were investigated. Decreasing hardness of particle does not affect on shape of layers descending in the shaft, and causes acceleration of computation. However, stream line of particles and stress distribution vary with changing in hardness of particle. The softening of particle is not suitable for analysis of stream line and stress distribution of packed bed in the blast furnace. Stream lines of particle become smooth with an increase in the rolling friction coefficient. The value of the rolling friction coefficient should be controlled for representing shape of actual burden. It is confirmed that descending velocity of burden also affects on the stress distribution of the packed bed. Physical properties and calculation condition should be optimized depending on the purpose of analysis and phenomena in the blast furnace.

Influences of Physical Properties of Particle in Discrete Element Method on Descending Phenomena and Stress Distribution in Blast Furnace